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Write the chemical formula for the following compound: Calcium selenide hexahydrate
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- 1. Matter and Measurements4h 34m
- What is Chemistry?8m
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- The Genetic Code6m
- Introduction to Translation7m
- Translation: Protein Synthesis18m
3. Ionic Compounds
Naming Ionic Hydrates
Scelta multipla
Give the systematic name from the given formula: K2Cr2O7 ∙ 3 H2O
A
dipotassium dichromate trihydrate
B
potassium dichromate trihydrate
C
potassium chromate trihydrate
D
trihydrate potassium chromate
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Guida verificata passo dopo passo1
Identify the chemical formula given: K2Cr2O7 ∙ 3 H2O. This represents a compound with potassium (K), dichromate (Cr2O7), and water molecules (H2O).
Recognize that K2Cr2O7 is known as potassium dichromate. The 'di-' prefix indicates two chromium atoms in the dichromate ion (Cr2O7).
Note the presence of '∙ 3 H2O' in the formula, which indicates that the compound is a hydrate. Specifically, it contains three water molecules, hence the term 'trihydrate'.
Combine the names of the components: The systematic name is formed by combining the name of the ionic compound (potassium dichromate) with the number of water molecules (trihydrate).
Verify the systematic name: The correct systematic name for the compound K2Cr2O7 ∙ 3 H2O is 'potassium dichromate trihydrate', as it accurately reflects the composition and structure of the compound.
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